Casement-operator.



0. C. RIXSON.

CASEMENT OPERATOR.

APPLICATION FILED SEPT. so. 1915.

1,, 1 79,963 Patented Apr. 18; 1916.

m ($1 flfciommgf OSCAR C. BIXSON, OF NEW ROCHELLE, NEW YORK.

CASEMENT-OPERATOR.

Specification of Letters Patent.

atented ftpr. i 1916.

Original application filed November 19,1914, Serial No. 872.877. Divided and this application filed September 30,1915. Serial No. 53,360.

To all whom it may concern Be it known that I, Osom C. EDISON, a citizen of the United States, residing at New Rochelle, in the county of \Vestchester and tate of New York, have invented certain new and useful Improven'ients in Casement Operators, of which the following is a full, clear, and exact description.

This invention relates to casement operators. In my former application Serial No. 872,877, filed November 19, 1914, I have disclosed an operating mechanism which is adapted to actuate swinging closures of various'ki'n'ds', such as easements, transoms and the like, and in that application I have shown as illustrative of the invention a form of casement operator which disclosed novel features of construction other than the parts of the operating mechanism which are germane to'all classes of swinging closures.

This case .is a division of my former application and is confined to the easement operator.

One of the objects of this invention is to provide a casement operator which. without requiring any change in the construction of the parts, may be readily installed within the window frame so that it is concealed from view or may be mounted in exposed position upon the window frame.

Another object of my invention is to provide an operator in which the lever arm which is slidably connected to the sash of the window is of a minimum length when the window is in its closed position whereby, should the window become stuck, the lever arm will be less lizible to be injured when the necessary power is applied to the same to open the casement.-

A further object of the invention is to provide a casement operator in which the entire actuating i'nechanism for the swinging arm is concealed within a relatively small casing so that when the operator is mounted in exposed position, it will present a neat and sightly appearance.

\Vith these and other ob ects in view, my invention consists of the combinations and instructions oi parts which will. be heredying an oll'sct finger 1U.

sash as shown.

principles ofmy invention, the stool of the window frame being removed to more clearly show the parts; Fig. 2 is a vertical section of Fig. 1; Fig. 3 is an enlarged view of the operator and the anchor piece which connects it to the sash; and Fig. r is a section through the swinging arm and the anchor piece.

In the form illustrated, the easement operator is oi the concealed type; that is, the

parts are so arranged that when the casement is closed they are hidden from view. The casement or window frame is of a common eonstriu-tion and comprises a sill 1 to which is secured an apron or trim 2, and a stool 3. The stool l is preferably spaced from the sill l by means of a block at which leaves a recess or chamber a which is adapted to receive the easement operator which will be hereinafter described. It desired, instead of spacing the stool 3 by means of a block 4, the space or recess It may be formed by niortising the sill and stool, since the chamber required for the device is small. The hinged window or casement which is designated 5 is mounted upon the side board 7 of the window frame by means of hinges (i. A weather strip 8 may be se cured to the strip 7 in order to prevent the passage of air between the easement sash and the board 7, the construction described being such that the casement swings outwardly as is the 'usual practice.

Secured to the inner face of the bottom strip of the casement sash is a plate 9 car- This member which will hereinafter be referred to as the anchor piece is preferably inset into the In the concealed type of casement operator the linger on the anchor piece projects into the recess or chamber a when the easement is closed and the bottom edge of the plate 9 is flush with the bottom of the window sash.

Mounted within the chamber or recess a is a casing which comprises a [lat base plate 12 which is sccurotl to the sill l, of the windowby screws 13. livotally mounted upon astud '15 carried by the base plate is a swinging arm i-l comprising a. solid portion 14. over the outer end of which is fitted a hollow tubular bar or member 16. The member 16 is slotted in its under face as at l? and has its outer end closed by a cap id. The anrhor piece 10 which extends beneath the swinging arm carries a pin 19 at its outer end which projects into the hollow member through the slot 17. Pivotally mounted upon the pin and positioned within the hollow member is a sliding block 20 which may be of fiber or other suitable material so that when power is applied to the arm to swing it upon its pivot, the block will slide within the member 16 to move the 'asen'ient to its open or closed position.

The actuating mechanism for the swinging arm is mounted within a casing or box like housing 21, the bottom of which is formed by the base plate. The swinging arm is extended beyond its pivotal point as at and projects into the casing through a suitable slot in its side wall adjacent the swinging arm. This side wall is shaped somewhat irregular to permit the swinging arm to move to its fully open position without interferei'ice. Mounted within the easing is a screw or thr aded shaft 23, one end of \which is of reduced diameter and has a bearing in a plug 2% which is threaded into a suitably shaped aperture or opening in one of the other side walls of the casing; the other end of the threaded shaft which is also of reduced diameter passes through a. bearing in a boss projecting laterally from the opposite side wall of the casing. Steel washers 2i) and 27 are preferably provided at each end of the threaded portion of the shaft to take up the wear occasioned from the end thrust and also serve to prevent it from having any free play.. Mounted upon the shaft or screw 23 is a traveling nut 38 which has projecting from it a lug 20. 'livoted links 30 connect the extension of the swin 'in" arm with the lu 29 so that as the nut travels along the screw, its motion will be communicated to the hollow swinging arm to angularly move the same and cause the block 20 to ride within the. same and thereby open or close the casement.

As will be clear from Fig. 1, the end of the threaded shaft which passes through the boss is squared and extends through the apron or trim 9. of the window frame. 'lhis/squared end receives a crank 31 through which power is applied to the threaded shaft. it will therefore be seen that all of the actuating mechanism with the exception of the exposed squared end which receives the ('l'tlllli is concealed within the casing or housing 21. \Vhenthe casement operator is-mounted in eXposed position upon the stool of the window frame, none of the actuating parts are therefore in sight and the device presents a sightly and attractiij e appea'ance. This is especially true where the casing and swinging arm are plated with silver or other metals to add to their ornamental appearance. It

is also of advantage to utilize a' tubular arm and emplace within this arm the sliding block carried by the anchor piece, for by this construction the outside finished surface of the arm and the anchor piece are not in sliding contact with each other and there is no danger they will be scratched or otherwise mutilated when the casement is opened or closed.

The fact that the slot 17 is in the bottom face of the hollow swinging arm whereby the slot and the connections between the swingim arm and anchor piece are concealed from vie also adds to the appearance of the operator. Numerous advantages arise if this connection described is used rather than the old connection which consists of a swinging arm having apart at its extreme end which rides in a grooved slideway carried by the sash or the window. One

ad 'antage is that it permits the same opersash at any distance from the bottom ofv the window. For example, when the operator is mounted in exposed position upon the stool of the window frame, the anchor may be placed at a sullicient distance above the bottom of the sash of the window to insure the proper cooperation of the parts or it may be mounted flush with the bottom of the sash when the operator is concealed beneath the stool of the window frame. Another advantage resulting from utilizing an anchor piece is that when the easement is in its closed position, the length of the swinging arm; that is, the distance between its pivotal point determined by the hinges 6 and the point at which the arm is engaged by the anchor piece, is shorter than it is in any other position of the window. It is only when the easement is in its closed position and becomes stuckthat considerablepower is required to open the casement. The arm will therefore resist bending, to a greater extent than the longer arm which is necessary in the old constructions. A still further advantage is that the distance between the hinge which connects the easement to the window frame and the point at which the swinging arm engages the window does not vary in the different positions of the win dow. This is important since in the old construction, the point of engagement of the swinging arm slides along the window sash and approaches the hinge'as the window is opened and when thewindoiv occupies its fully opened position, these two points are relatively close. In such constructions, a

heavy wind has frequently caused the hinges to give way, since the easement sash under these. conditions actsas a lever upon the hinge with a fulcrum point at the point at which the swinging arm engages the window sash which is immovable unless its position is changed by rotating the crank. In

my construction, by selecting the point at which the anchor piece is secured to the casement sash at a sulhcient distance from the hinge, any danger of the easement being torn from its hinges is overcome.

I claim: I

1. A casement operator comprising an anchor piece secured to the easement sash, a hollow tubular arm PlYOtilll) mounted upon the casement frame. power actuated means for swinging said arm, said arm havmeans within said housing connected to said part for swinging said arm, an anchor piece carried by the easement sash and a part mounted on said anchor piece slidably mounted within said tubular swinging arm.

.3. A easement operator comprising a base plate, a asing mounted on said base plate. a.

swinging arm pivoted on said base plate having .a part extending beyond its pivotal point and projecting into said casing, a threaded shaft in said casin". a traveling, nut on said shaft connected to said part. an anchor piece secured to the casement sash having a sliding connection with the swinging arm. 7

In witness whereof I subscribe my signature in the presence of two witnesses.

OSCAR C. RIXSON.

Witnesses: \VALno M. CI-IAPIN, Auxns M. PENNELL. 

